DESCRIZIONE PRODOTTO
PEPPERL & FUCHS 277759 - KFD2-SR2-EX1.W.LB Intrinsic Safety Barrier Switch Amplifier
The PEPPERL & FUCHS KFD2-SR2-EX1.W.LB is a 2-channel intrinsic safety barrier from the K-System family, engineered to provide galvanic isolation and signal conditioning for hazardous area inputs. It safely transmits signals from NAMUR sensors or dry contacts in classified zones to the safe area via potential-free relay outputs, ensuring compliance with intrinsic safety standards for critical process control applications.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsic Safety Barrier Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC (Nominal 24V DC)
- POWER CONSUMPTION: Approximately 1.5W per channel
- INPUTS:
- NUMBER OF CHANNELS: 2
- SIGNAL TYPE: NAMUR proximity sensors (EN 60947-5-6) or dry contacts
- HAZARDOUS AREA SUITABILITY: Zone 0, 1, 2 (gas) Zone 20, 21, 22 (dust)
- OUTPUTS:
- NUMBER OF CHANNELS: 2
- TYPE: Potential-free relay changeover contacts
- SWITCHING CAPACITY: 250V AC / 2A or 30V DC / 2A (resistive load)
- INTERFACE/CONTROL:
- INDICATORS: LEDs for operation, switching state, and fault
- CONFIGURATION: Selectable operating modes (e.g., normally open/normally closed)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING STYLE: 35mm DIN rail
- OPERATING TEMPERATURE: -20 to +60 degrees C
- SAFETY/COMPLIANCE:
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 (IEC 61508/IEC 61511)
- ISOLATION: Galvanic isolation between input, output, and power supply
- APPROVALS: ATEX, IECEx, UL, cUL, EAC
- ADVANCED FEATURES:
- LINE FAULT DETECTION: Integrated for lead breakage and short circuits in field circuits
